125/150 rear brake technique entering corners??

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9/30/2018 12:24 PM

I bought a 19 SX150 about a month ago. I've been loving the bike, but have a question for all the 125/150 guys...

I'm coming of a SXF450, vet junior/almost intermediate rider.

When I'm entering corners, I'm having a problem with the rear brake killing my RPMs, causing a bog mid way through the corner. I try to stay off the clutch as much as possible, so try not to use it on corner entry. On my 450, the motor inertia would keep the RPMs going, and also the lower RPMs were not a problem for the 450 to lug out of.

Are the fast 125/150 guys:
1. Using the front brake more than the rear on corner entry, so the RPMs doing get slowed by the rear brake
2. Pulling in the clutch on corner entry, keeping the RPMs up while braking, then slipping the clutch out mid corner
3. Trying to brake almost not at all, and letting the corner scrub off speed
4. Something else I haven't thought off...


9/30/2018 12:34 PM
Edited Date/Time: 9/30/2018 12:37 PM

its a small bore two stroke, it does not have a very big rev range to make power,
if it is bogging you are in a gear to high, you need to shift way more on a 150/125 than on a 450,

i will be on teh clutch coming out of most corners on my 125 to keep it in the power band,


9/30/2018 12:51 PM

I ride my 450 mainly and 125 every once in a while. You can't even compare the two, 450 3rd gear everywhere almost no clutch. 125 is constant shifting down to 1-2 gear in turns and abuse the clutch basically. You have to have the throttle going and dump the clutch and carry momentum not so much braking hard for tight lines.


9/30/2018 1:30 PM

Down shift at least 1 more gear. If it doesnt sound like its fixing to explode you ain't revving it high enough.


9/30/2018 1:36 PM

Sounds like you are riding it a gear to tall? As soon as you crack the throttle does it pull without clutch?

I was going to say I cant imagine not using the clutch when I am braking (have a 150sx), but more I think about it thats when I am riding the bike in a gear higher than it should be in. Down shift(using the clutch) and I hardly need the clutch to control the braking.


9/30/2018 2:39 PM

All that and also try running your brake pedal a little lower so that it’s easier to feather the brake as opposed to getting on it strongly.


Powerband in every gear !

9/30/2018 3:23 PM

Understandable coming from a 450 but you can't just be off the throttle and brake. Have the clutch in and already giving it some revs with the throttle or like you mentioned, rather than much braking, just down shift and turn/hold it wide.
Don't have the mentality "I'm trying to stay off the clutch".


9/30/2018 3:59 PM
Edited Date/Time: 9/30/2018 4:04 PM

Quit dragging your break and get her down to 2nd gear. Hold her wfo and just nip the clutch. No need to smoke it. But those bikes run really good on top so you gotta keep the momentum up and keep it at the top Of the rpm range always. don’t short shift her....let her breathe. But when she falls on her face you need to be able To feather out of it. And get In a lower gear.

With good throttle control and momentum you won’t need much clutch. gotta keep her on the top.


Since 1987

9/30/2018 5:03 PM

A combination of 2 and 3, depending on the corner and conditions.

You MUST use the clutch on a 125. The clutch is your friend. One finger on it at all times ready to feather it. Once you get it down, it’ll be second nature.

Some corners you just take a big sweeping line and use no brakes at all or just a touch of front brake and a haaaaiiiir of rear in a straight line and then rail through it using clutch/throttle.

Again, once you get the hang of it, there is no greater feeling in the world than carrying that momentum through a corner and ringing the neck of the shrieking banshee on the way out.


9/30/2018 5:05 PM

Brake harder, earlier. Off the brakes early and start to pin the throttle before you're even leaned over all the way. Start feeding out the clutch as you hit the apex of the turn and hammer down on the power as soon as you can. Finger the clutch only as long as you need to keep it from bogging or the rear wheel from stepping out.


Braaapin' aint easy.

9/30/2018 5:09 PM

Falcon wrote:

Brake harder, earlier. Off the brakes early and start to pin the throttle before you're even leaned over all the way. Start ...more

This. Its way easier to stop that 125 than it is a 450. Get that thing slowed down before you corner and you can build momentum coming out. 2 strokes need to be kept up in the rpms.


9/30/2018 9:02 PM

colintrax wrote:

Down shift at least 1 more gear. If it doesnt sound like its fixing to explode you ain't revving it high enough.

This ^ It’s all about being an extra gear down then you think. I catch myself all the time.
I’m wearing out my left boot from shifting so much!


9/30/2018 9:36 PM
Edited Date/Time: 9/30/2018 9:39 PM

When you’re actually in the corner, you should not be braking or using the clutch, because it unsettles the suspension and throws everything off. Instead, get all of the braking done before entering the corner (front/rear combo but preferably none at all) and downshift before you enter the corner. Once you’re in the corner no matter what speed you’re going, you should keep your RPMS up to whatever is comfortable, but do not blip the throttle, as this will also unsettle everything and mess you up. Instead roll on the throttle, and build rpms throughout the corner, this means that by the exit, you should have enough rpms built to get on the gas in the straightaway, this is where the clutch if needed should come into play. It’s basically all about being smooth on a 125/150. It’s basically about being smooth and keeping momentum up. Braking hard will only hurt you and anyone that says otherwise is frankly doing it wrong lol. Basically think that keeping your momentum up without any drastic changes will make you faster. Hope this helps ??


9/30/2018 9:37 PM

Yeah down shift 1 extra gear. I have the mentality that I want to blow it up and I want to hurt the clutch. Then I get tired and wish I had a four stroke


10/1/2018 10:03 AM

What a few others have mentioned - you have to use the clutch when you hit the rear brake on a small bore 2 stroke or you will or will almost kill the motor - especially if it has a light flywheel. You can let it out once you are off the rear brake.
Downshifting 1 extra gear is usually needed vs a 450 as others have mentioned also.
2 strokes take a little more work/skill to ride fast.